During a chemical reaction, atoms are ________.
A. rearranged
B. created
C. destroyed
D. destroyed and created
Answer: A
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Which of the following statements is true regarding the parasexual cycle demonstrated by some fungi? Select all correct choices
A. It involves mitotic recombination. B. It involves meiotic recombination. C. Chromosomes are lost until haploid (1n) cells are achieved. D. Chromosomes are added until haploid (1n) cells are achieved. E. The parasexual cycle produces dikaryotic (n+n) cells.
In some species, the sex of the future individual is determined by environmental conditions and not by sex chromosomes. Which species determines its sex by temperature?
a. birds b. fruit flies c. frogs d. rabbits e. zebras
Some of the "branches" of a phylogenetic tree do not extend to the end. What do these lines represent?
A) Extinct species B) Species of unknown origin C) Convergent species D) Lineages that have not changed
Where is this molecule normally found in a eukaryotic cell?
A) cytosol
B) Golgi apparatus
C) nucleus
D) rough endoplasmic reticulum